What is the cylinder capacity of an 580 cylinder filled to 3000 psi?

To determine the cylinder capacity of a 580 cylinder filled to 3000 psi, it's important to recognize that a common standard for dive cylinders is the "580" designation, which typically refers to a cylinder that can hold 80 cubic feet of gas when filled to its full rated pressure, which is often 3000 psi for many aluminum cylinders used in scuba diving.

The correct answer being 80 cuft aligns with the standard specifications for this type of cylinder. In practical diving terms, an 80 cuft cylinder filled to 3000 psi has sufficient volume to provide adequate breathing gas for the diver for recreational dives while allowing for safe ascent and possible safety stops.

In essence, knowing the standard capacity helps divers make informed decisions while planning their dives—particularly in relation to the duration and the amount of gas needed for safe returns to the surface.